The Chemical Structure of Galactans from Some New Zealand Red Algae
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I. J. Miller
Abstract
The polysaccharides from six New Zealand species of red seaweed were examined by 13C NMR spectroscopy, and found to have the following structures: Caulacanthus ustulatis (Caulacanthaceae): 3:1 κ/ι-hybrid carrageenan; Craspedocarpus erosus (Cystocloniaceae): ι-carrageenan; Callophyllis hombroniana (Kallymeniaceae): θ-carrageenan together with minor components including up to 10% pyruvylation, and 4-linked D-and L-galactose; Gracilaria truncata (Gracilariales) (two new samples): agar, agar with 45 % 6-O-methylation on the 3-linked unit; Capreolia implexa (Gelidiales): agar with 10% 6-O-methylation on the 3-linked unit and 6% 2-O-methylation on the anhydrogalactosyl unit; Gymnogongrus torulosus: 1:1.15 κ/ι-hybrid carrageenan with precursors. The 13C NMR spectra of the two precursors are very similar to each other. The set of plants termed Gracilaria truncata may include more than one species.
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
Artikel in diesem Heft
- Contents
- Author Index
- Subject Index
- Taxonomical Index
- Estimating Biomass from the Cover of Gelidiella acerosa along the Coasts of Eastern Philippines
- Photosynthesis, Growth and Nitrogen Uptake of Competing Marine Macrophytes in the Gulf of California
- Patch Distribution and Within-Patch Dynamics of the Seagrass Zostera noltii Hornem. in Los Toruños Salt-Marsh, Cádiz Bay, Natural Park, Spain
- Interannual Variability in Flowering of Posidonia oceanica in the North-Western Mediterranean Sea, and Relationships among Shoot Age and Flowering
- A New Species of Vaucheria Epiphytic on Mangroves
- Taxonomic Notes on Marine Algae from Malaysia. XI. Four Species of Rhodophyceae
- First Record of Ceramium giacconei (Ceramiaceae, Rhodophyta) in the North Pacific: Developmental Morphology of Vegetative and Reproductive Structures
- Carbon and Nitrogen Isotopic Ratios of the Seagrass Posidonia oceanica: Depth-related Variations
- Chemical Composition of Attached and Drift Specimens of Sargassum mangarevense and Turbinaria ornata (Phaeophyta: Fucales) from Tahiti, French Polynesia
- The Chemical Structure of Galactans from Some New Zealand Red Algae
- Proceedings of the XVIIth International Seaweed Symposium, Cape Town, South Africa, 28 January 2 February 2001
- Acknowledgement
- Meetings
Artikel in diesem Heft
- Contents
- Author Index
- Subject Index
- Taxonomical Index
- Estimating Biomass from the Cover of Gelidiella acerosa along the Coasts of Eastern Philippines
- Photosynthesis, Growth and Nitrogen Uptake of Competing Marine Macrophytes in the Gulf of California
- Patch Distribution and Within-Patch Dynamics of the Seagrass Zostera noltii Hornem. in Los Toruños Salt-Marsh, Cádiz Bay, Natural Park, Spain
- Interannual Variability in Flowering of Posidonia oceanica in the North-Western Mediterranean Sea, and Relationships among Shoot Age and Flowering
- A New Species of Vaucheria Epiphytic on Mangroves
- Taxonomic Notes on Marine Algae from Malaysia. XI. Four Species of Rhodophyceae
- First Record of Ceramium giacconei (Ceramiaceae, Rhodophyta) in the North Pacific: Developmental Morphology of Vegetative and Reproductive Structures
- Carbon and Nitrogen Isotopic Ratios of the Seagrass Posidonia oceanica: Depth-related Variations
- Chemical Composition of Attached and Drift Specimens of Sargassum mangarevense and Turbinaria ornata (Phaeophyta: Fucales) from Tahiti, French Polynesia
- The Chemical Structure of Galactans from Some New Zealand Red Algae
- Proceedings of the XVIIth International Seaweed Symposium, Cape Town, South Africa, 28 January 2 February 2001
- Acknowledgement
- Meetings
